Pulse modulation method

Details Pulse modulation method Pulse modulation method

1995-11-14

1997-06-17

Gaffin, Jeffrey A.

Coded data generation or conversion

Digital code to digital code converters

To or from particular bit symbol

341 50, 375237, 375253, H04Q 139, H03K 704

Patent

active

056401604

ABSTRACT:
A binary code is divided into 2-bit data units. Pulse position modulation is performed on each unit rather than on each bit. Since a pulse is not formed for each bit, the transmission interval and transmission frame interval for the modulated signal is shortened, thus enabling high speed transmission. Since the pulse interval of the signal contains the information of the 2-bit data unit, only the leading edge of the pulse needs to be detected. This feature allows reliable demodulation even under adverse conditions such as a long-distance transmission route or a noisy transmission route. Since there is no need to demodulate by comparing each bit with an immediately preceding bit, complex demodulation schemes and decoding registers are not needed on the receiving side. Since the width of the pulse does not contain any transmission information, the pulse width is made as short as possible, thereby reducing battery consumption within the transmitter.

REFERENCES:
patent: 4472686 (1984-09-01), Nishimura et al.
patent: 4814741 (1989-03-01), Hongo et al.
patent: 4931751 (1990-06-01), Keller et al.
patent: 4931790 (1990-06-01), Kobayashi et al.
patent: 5023888 (1991-06-01), Bayston
patent: 5257288 (1993-10-01), Moser
patent: 5475381 (1995-12-01), Williamson et al.
patent: 5481560 (1996-01-01), Potetz et al.

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